Doug is a salesperson at a retail store and earns $90 per week plus 5% of his weekly sales. If Doug makes $630 one week, what are his sales that week?

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Aword processing program requires a 7- digit registration code made up of the digits 1,2,4,5,6,7 and 9 each number has to be used and no number can be used mor than once how many codes are possible

Jonathan can throw a baseball 10 1/3 yards. his brother joey can throw a baseball 13 1/2 yards. how much father can joey throw the ball?